Question Answers

1.If m=2, find the value of: (v) 5m/2–4 1.If m=2 find the value of: (v) 5m/2–4 October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

1.If m=2, find the value of: (iv) 3m^2–2m–7 1.If m=2 find the value of: (iv) 3m^2–2m–7 October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

1.If m=2, find the value of: (iii) 9–5m 1.If m=2 find the value of: (iii) 9–5m October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

1.If m=2, find the value of: (ii) 3m–5 1.If m=2 find the value of: (ii) 3m–5 October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

1.If m=2, find the value of: (i) m–2 1.If m=2 find the value of: (i) m–2 October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

6.(b) From the sum of 4+3x and 5-4x+2x^2, subtract the sum of 3x^2–5x and –x^2+2x+5. 6.(b) From the sum of 4+3x and 5-4x+2x^2 subtract the sum of 3x^2–5x and –x^2+2x+5. October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

6.(a) From the sum of 3x–y+11 and –y–11, subtract 3x – y – 11. 6.(a) From the sum of 3x–y+11 and –y–11 subtract 3x - y - 11. October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

5.What should be taken away from 3x^2–4y^2+5xy+20 to obtain –x^2–y^2+6xy+20 ? 5.What should be taken away from 3x^2–4y^2+5xy+20 to obtain –x^2–y^2+6xy+20 ? October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

4. (b) What should be subtracted from 2a+8b+10 to get –3a+7b+16 ? 4. (b) What should be subtracted from 2a+8b+10 to get –3a+7b+16 ? October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,

4.(a) What should be added to x^2+xy+y^2 to obtain 2x^2+3xy? 4.(a) What should be added to x^2+xy+y^2 to obtain 2x^2+3xy? October 9, 2020 Category: Chapter 13 - Exponents and Powers , Maths , NCERT Class 7 ,